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It sounds like you are referring to "neon" signs. About 1/3 of all "neon" signs actually use tubes filled with very low pressure neon. The rest use other noble gases like helium, argon, krypton, and xenon - often with something like a minute amount of Mercury added and a phosphor coating to the glass so that the resulting UV light produced when the gas is electrified can be converted to other colors by the phosphor coating (which fluoresces when bombarded by the UV).

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Q: What element is used in advertising signs?
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Related questions

What element is used bright flashing and advertising sign?

Neon is used for bright flashing signs such as advertising signs.


What element is used in bright and flashing advertising signs?

Neon


What element is used in bright advertising signs?

If the color is red, the element is neon, a noble gas.


What element is used bright flashing advertising signs?

Neon mostly.


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Neon is used for advertising sign


Why is neon used in advertising signs?

Neon signs are one of the most effective forms of advertising for bussiness.


What gase is used in advertising signs?

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it heats up


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Neon


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Neon gas is a colorless odorless gas that fills tubes that are often used in electrical advertising signs.


What element used in bright flashing advertising sings?

neon


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Neon.